From 610e74190352a5c8c1f1746a272fc7364cb2bac3 Mon Sep 17 00:00:00 2001
From: Nathan Holstein <nathan.holstein@gmail.com>
Date: Sun, 9 Aug 2015 22:05:34 -0400
Subject: [PATCH] Generate automatic header dependencies.

---
 .gitignore  | 1 +
 bsd.prog.mk | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 763bd71..8d285f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ doas
 version.h
 
 *.a
+*.d
 *.o
 
 *.swp
diff --git a/bsd.prog.mk b/bsd.prog.mk
index 1f01d29..80d3231 100644
--- a/bsd.prog.mk
+++ b/bsd.prog.mk
@@ -11,7 +11,7 @@ OPENBSD:=$(addprefix libopenbsd/,${OPENBSD:.c=.o})
 libopenbsd.a: ${OPENBSD}
 	${AR} -r $@ $?
 
-CFLAGS:=${CFLAGS} -I${CURDIR}/libopenbsd ${COPTS}
+CFLAGS:=${CFLAGS} -I${CURDIR}/libopenbsd ${COPTS} -MD -MP
 
 OBJS:=${SRCS:.y=.c}
 OBJS:=${OBJS:.c=.o}
@@ -46,8 +46,12 @@ clean:
 	rm -f version.h
 	rm -f libopenbsd.a
 	rm -f ${OPENBSD}
+	rm -f ${OPENBSD:.o=.d}
 	rm -f ${OBJS}
+	rm -f ${OBJS:.o=.d}
 	rm -f ${PROG}
 
+-include ${objs:.o=.d} ${OPENBSD:.o=.d}
+
 .PHONY: default clean install man
 .INTERMEDIATE: .${PROG}.chmod
-- 
2.39.2